Hong Kong Hotel Retrofit Case Study

Author: Randy Miles –


With 602 beautifully designed rooms and 8 luxurious restaurants and lounges, The JW Marriott in Hong Kong, China sought to save energy and reduce their carbon footprint while offering a 24/7 dining service. In 2014, they decided to install Melink’s patented Intelli­-Hood® demand control kitchen ventilation as a means to  reach this goal. Here is more information regarding the hotel kitchens:

  • Total motor power: 15 HP
  • Daily operating hours: 24
  • Days per week: 7
  • Weeks per year: 52
  • Cost per kilowatt hour: $0.14


Intelli-Hood saved $8,249 in utility costs and reported an average fan speed of 76%. This resulted in a 2 year payback and and reduced carbon emissions.  The JW Marriott team is very pleased.

demand control ventilation energy savings and payback with Intelli-Hood

Below is a sample graph of the varying exhaust fan speed for one day at the hotel:

variable speed exhaust fan graph at JW Marriott

And the below graphic indicates the before (navy) and after (green) reductions in kilowatt hours, heat load, and exhaust volume:

before and after kilowatt, heat load, and CFM savings


Could Intelli-Hood be a fit for my project?

Are you curious how much energy Intelli-Hood could save within your commercial or industrial kitchens?  Submit an energy savings estimate request form at the bottom of our Intelli-Hood page to get started.


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Authored By: Randy Miles

Randy Miles, PMP, LEED AP, is an executive leader in the high-performance building and sustainability space with a passion for making the built environment a smart, connected, efficient and healthy place for all inhabitants. As the planet is on track to double the existing building stock in the next 30 years to keep up with population growth, there is a tremendous need to do this in an environmentally responsible manner. To respond to this need, Randy leads the Sales and Marketing team at Melink Corporation to bring a portfolio of products and services to the market for building performance and energy efficiency. Randy has served on numerous professional panels related to energy efficiency, delivered conference presentations, and served in leadership roles at Cincinnati Green Building Council, Architecture 2030, and Green Energy Ohio.

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